Activity 01
Play Build: String Networks
Provide yarn and toy devices like blocks or animals. Students connect them in star and bus shapes, then tug strings to simulate data flow and note what happens if one breaks. Discuss which shape shares best.
Differentiate between various network types and their typical applications.
Facilitation TipDuring String Networks, walk the room to check string tension and ask groups to predict what happens if one string is cut before they test it.
What to look forShow students pictures of different network setups (e.g., a few computers in a classroom, a map with lines connecting cities). Ask students to point to the picture that best shows a LAN and the one that best shows a WAN, explaining their choices.
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Activity 02
Role-Play: Protocol Rules
Assign roles as sender, receiver, and protocol checker. Students pass message cards but must follow rules like 'wait for okay' to mimic TCP/IP handshakes. Switch roles and compare smooth versus rule-free exchanges.
Explain the purpose of network protocols (e.g., TCP/IP, HTTP) in data communication.
Facilitation TipIn Protocol Rules, deliberately omit a key rule in one round and pause the role-play to ask students to identify what broke the communication flow.
What to look forAsk students: 'Imagine you are building a network for your toys. If all toys connect to one big toy box, what kind of network is that (star or bus)? What happens if the toy box breaks?' Guide them to discuss the pros and cons of different arrangements.
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Activity 03
Draw Map: Classroom LAN
Students draw their classroom as a LAN, marking devices like computers and printer connected to a switch. Color lines for data paths and label as star topology. Share maps in a gallery walk.
Analyze the advantages and disadvantages of different network topologies (e.g., star, bus).
Facilitation TipFor Draw Map: Classroom LAN, provide grid paper and colored pencils to keep mapping clear and avoid tangled lines that obscure topology understanding.
What to look forGive each student a card with a scenario (e.g., 'Sending an email', 'Watching a video online', 'Connecting classroom computers'). Ask them to write down one rule (protocol) that helps this happen and one word for how the computers are arranged (topology).
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Activity 04
Compare Hunt: Network Types
Show pictures of home WiFi (LAN), school to cloud (WAN), and world maps (Internet). In groups, sort cards into types and match to real uses like printing or video calls.
Differentiate between various network types and their typical applications.
What to look forShow students pictures of different network setups (e.g., a few computers in a classroom, a map with lines connecting cities). Ask students to point to the picture that best shows a LAN and the one that best shows a WAN, explaining their choices.
UnderstandAnalyzeEvaluateSelf-AwarenessRelationship Skills
Generate Complete Lesson→A few notes on teaching this unit
Start with concrete models before moving to abstraction. Use physical objects like string, cups, and toys to represent devices and hubs, then transition to drawings on paper or whiteboards. Avoid overloading students with technical terms; instead, name the topologies and protocols only after they’ve experienced their purpose through play. Research shows that repeated, embodied practice with simple materials builds durable mental models that students can later connect to formal vocabulary.
Students will confidently describe star, bus, and ring topologies using their own models, explain why protocols like TCP/IP and HTTP matter through peer trials, and create accurate diagrams of classroom and global networks that reflect their understanding of LAN, WAN, and the Internet.
Watch Out for These Misconceptions
During String Networks, watch for students assuming all devices connect in a circle because it feels natural.
During String Networks, have groups first arrange devices in a circle and test sending messages, then switch to a star. Ask which setup kept messages clear when one string was pulled tight or loosened.
During Protocol Rules, watch for students believing data travels instantly without order.
During Protocol Rules, run one round without any rules, then add rules one at a time while students role-play message passing. Pause to compare lost or scrambled messages against smooth, orderly delivery.
During Draw Map: Classroom LAN, watch for students drawing the Internet as a single computer instead of linked networks.
During Draw Map: Classroom LAN, provide a small world map sticker sheet. Ask students to add their home or another school to the diagram and draw lines showing how data moves between them and the classroom, highlighting multiple networks and protocols.
Methods used in this brief